Home / 51,698.37-77,547.27-20,130.39

Finding the Fourth Proportional to 51,698.37, 77,547.27 and 20,130.39

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Solution

The fourth proportional to 51,698.37, 77,547.27 and 20,130.39 is: 30,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,698.37 : 77,547.27 = 20,130.39 : x
  2. Step 2: Convert to fraction form
    51,698.37/77,547.27 = 20,130.39/x
  3. Step 3: Cross multiply
    51,698.37x = 77,547.27 × 20,130.39
  4. Step 4: Simplify right side
    51,698.37x = 1,561,056,788.54
  5. Step 5: Solve for x
    x = 1,561,056,788.54/51,698.37
  6. Step 6: Final answer
    x = 30,195.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.